What is protein and why is it an important food nutrient?

What will be an ideal response?


In addition to carbohydrate, protein is another important food nutrient. Protein, a macronutrient that consists of building blocks called amino acids, is used as raw material to build and repair the structures of almost every part of our body. Proteins we eat are broken down into their amino acid components and then reassembled into body structures such as hair, muscle, and collagen. Our blood cells employ these amino acids and assembled proteins to carry oxygen in the form of hemoglobin, antibodies to fight diseases, enzymes to catalyze biochemical processes, and hormones to act as chemical messengers. Proteins can also fuel the body, but the body prefers to use stored carbohydrates or fats first since amino acids from proteins undergo more steps to convert into glucose in a process known as gluconeogenesis or into fatty acids through ketogenesis before their energy can be liberated.

Psychology

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You know your roommate has a history of anorexia nervosa. When you see her eat very little at dinner and then go to work out at the gym, you see this as a sign of another anorexic episode beginning. You don't think that when other people act the same way. Your behavior is consistent with:

a. a diagnostic labeling effect b. DSM c. dissociation d. the medical model approach

Psychology

When are artists, musicians, inventors, mathematicians, and physicists the most creative?

a. in their 70s b. in their 60s c. in their 40s and 50s d. in their 20s and 30s

Psychology

"Natural" or prepared childbirth courses instruct women

a. not to use a hospital labor room b. not to use anesthesia or pain killers c. not to use a physician d. how to reduce the fear-tension-pain cycle

Psychology

The two ethnic groups that tend to place the largest emphasis on family duty and obligation are Asian Americans and

A. non-Latino Whites. B. African Americans. C. Native Americans. D. Latinos.

Psychology